JPH04309296A - Cover tape winder for electronic component supply apparatus - Google Patents

Abstract

PURPOSE:To easily and effectively secure a cover tape by rotatably supporting core pieces of a winding core and holding the starting end of the tape by pins implanted into the core and the pieces. CONSTITUTION:Core pieces 9a, 9b are rotated in a direction of tube shaft at guide pins 10, 11 as axes by removing a reel flange 4a, and a cover tape is inserted between the securing pins 15, 16 and the inner walls of cutouts 9e, 9f. Then, a guide ring of the flange 4a is engaged with the tube shaft, the flange 4a is engaged with the pins 10, 11 to be secured. Thus, the flange 4a is mounted thereby to hold the end of the tape between the pins 15, 16 and the pieces 9a, 9b to be secured. In this manner, the tape can be easily and effectively secured.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention relates to a cover tape winding device for an electronic component supply device that automatically supplies chip tape components to a board assembly process, and in particular, a take-up reel for winding the cover tape peeled off from the chip tape. Regarding.

0002

[Prior Art] In an electronic component supply device that supplies chip components from a chip tape in which chip components are housed at regular intervals, when winding up a cover tape that covers the surface of the chip tape onto a take-up reel, conventionally, the cover tape is A portion of the end of the tape was peeled off and it was fixed by pasting it onto the core of the take-up reel using adhesive tape.

0003

[Problem to be solved by the invention] As mentioned above, when starting to wind the cover tape onto the take-up reel, it is necessary to prepare adhesive tape each time and attach one end of the cover tape to the take-up reel to fix it. It was annoying.

SUMMARY OF THE INVENTION An object of the present invention is to provide a cover tape winding device that can simply and reliably fix the end of the cover tape to the take-up reel without using adhesive tape. .

[0005]

[Means for Solving the Problems] The present invention forms a take-up core with a plurality of arcuate core pieces at the center portion of a cover tape take-up reel rotatably held on a support, and at least one of the core pieces is rotatably supported, and a winding start end of the cover tape is held between a pin implanted in the winding core and the rotatable core piece.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the present invention will be described below with reference to the attached drawings. The cover tape winding device of the present invention is fixed to a part of an electronic component supply device (not shown) by a support body 1. One end of a support shaft 2 is fixed to the upper end of the support 1, and a take-up reel 4 for winding up the cover tape 3 is arranged around the support shaft 2 via a tube shaft 5.

As shown in FIG. 6, the tube shaft 5 is attached to the support shaft 2 via a known one-way clutch 6 so as to be rotatable in only one direction, and a stop plate 7 is connected to the support shaft 2. A set screw 8 fixed to the support shaft 2 prevents it from falling off the support shaft 2. This tube shaft 5 consists of a small diameter portion 5a and a large diameter portion 5b. The take-up reel 4 is provided in the small diameter portion 5a, and a drive mechanism for rotating the take-up reel 4 is provided in the large diameter portion 5b.

The take-up reel 4 includes a pair of disc-shaped reel flanges 4a and 4b, both reel flanges 4a,
A winding core 9 is formed between the winding cores 9 and 4b.
Wrap cover tape 3 around it. The reel flange 4a is fixed to the tube shaft 5 by two guide pins 10 and 11 implanted on the sides of the large diameter portion 5b of the tube shaft 5, and on the other hand, the reel flange 4b is attached to the guide pin 10.
, 11, and is detachably attached. Further, two core pieces 9a and 9b constituting the winding core 9 are pivotally supported by the guide pins 10 and 11. That is, a first groove and a second groove are formed on the outer periphery of the tips of the guide pins 10 and 11, respectively, and the first groove is for fitting the E-rings 12 and 13. With the core pieces 9a, 9b rotatable by the rings 12, 13, the guide pins 10, 1
1 without falling off. The second groove is for detachably holding the reel flange 4b, as will be described later.

The reel flange 4b has a guide ring 14 fitted to the tube shaft 5 at its center, and two keyholes 4c and 4d as shown are formed outside the guide ring 14. has been done. This keyhole 4c, 4d
is formed corresponding to the position of the guide pins 10, 11, and consists of a first portion larger than the outer diameter of the guide pins 10, 11, and a second portion smaller than the outer diameter. The reel flange 4b is assembled by fitting the guide ring 14 onto the tube shaft 5 while aligning the first portions of the keyholes 4c and 4d with the guide pins 10 and 11, and then turning the reel flange 4b counterclockwise. The second portion is secured and held in place by engaging the second groove.

Each of the core pieces 9a and 9b has an arcuate shape as a whole, and a through hole is formed at one end thereof, and the guide pins 10 and 11 are rotatably connected to the shaft through the through hole. supported. The other end has a notch 9e on the outer edge.
, 9f are formed. These notches are for holding the cover tape 3 together with the tape fixing pins 15 and 16, respectively, and the fixing pins 15 and 16, like the guide pins 10 and 11, are connected to the reel flange 4a. It is implanted and fixed to the large diameter portion 5b of the tube shaft 5 through the tube. Furthermore, recesses 17 and 18 are formed in the sides of the cores 9a and 9b facing the reel flange 4a, respectively, and balls 19 and 20 are disposed within these recesses. These balls 19, 20 are connected to the core pieces 9a, 9b.
A portion of the inner edge facing the tube axis 5 protrudes. Therefore, the reel flange 4b is connected to the guide pins 10 and 1.
When the guide ring 1 is engaged and held, that is, the guide ring 1
4 is fitted onto the tube shaft 5, the balls 19, 20
engages with the guide ring 14, and the core pieces 9a, 9
b is pressed outward. Then, the tape fixing pin 1
The inner walls of the notches 9e and 9f are pressed against the tape fixing pins 15 and 16, and the cover tape 3 guided around the tape fixing pins 15 and 16 is fixed to the winding core 9. For this reason, the outer circumference of the inner end of the guide ring 14 is chamfered, and as the guide ring 14 is fitted onto the tube shaft 5, the core pieces 9a, 9b are fitted into the balls 19, 20.
gradually pushed outward through the Therefore, these balls 19, 20 are preferably provided between the central portion of the arcuate core piece and its free end. Also, in this example, a ball that is easy to rotate is used;
Instead of this ball, a conical projection may be integrally formed.

The take-up reel 4 is rotated in synchronization with a chip tape feeding mechanism (not shown), and the drive mechanism for this is the one-way clutch 6 and the tube shaft 5.
It consists of a pushing plate 22 disposed on the outer periphery of the large diameter portion 5b with a friction body 21 interposed therebetween. This pushing plate 22 has a substantially U-shape,
An upright piece is provided at both open ends of the U-shape and the adjustment screw 23 is installed.
A spring 25 is disposed around the locking nut 24 and the adjustment screw 23 to strengthen or weaken the tightening force applied to the friction body 21, thereby making it possible to adjust the winding force of the cover tape 3. Furthermore, a connecting rod 26 is attached to one open end of the pushing plate 22 via an engagement pin 27, and the connecting rod 26 is connected to a chip tape feeding mechanism of an electronic component supply device, and By moving, the take-up reel 4 is rotated. Reference numeral 28 denotes a stop plate for preventing the pushing body 22 from falling off, and is fixed to the tube shaft 5 with screws 29.

When fixing one end of the cover tape 3 to the take-up reel, first rotate the reel flange 4b clockwise to release the engagement between the guide pins 10, 11 and the keyholes 4c, 4d. and the reel flange 4
b from the tube shaft 5. This reel flange 4b
By removing the core pieces 9a and 9b, the core pieces 9a and 9b become rotatable about the guide pins 10 and 11 in the direction of the tube axis 5. Therefore, using one of the tape fixing pins 15 and 16, the cover tape 3 is passed between the fixing pin and the inner wall of the notch as shown. Thereafter, the guide ring 14 of the reel flange 4b is fitted onto the tube shaft 5, and the reel flange 4b is engaged with and fixed to the guide pins 10 and 11. In this way, by attaching the reel flange 4b,
The end of the cover tape 3 is simply inserted and fixed between the tape fixing pin and the core piece.

The take-up reel 4 is fixed to the tube shaft 5 in which the one-way clutch 6 is installed. Therefore, this take-up reel 4 rotates only in a certain direction,
Wind up the cover tape 3 one after another. As mentioned above, the connecting rod 26 is connected to a tape feeding mechanism (not shown) and is driven up and down in synchronization with the tape feeding. Said connecting rod 2
6 is driven upward, a rotational force is applied to the tube shaft 5 via the push plate 22, but the one-way clutch 6 is activated and the tube shaft 5 does not rotate. The moving plate 22 slides around the tube shaft 5 via the friction body 21. Next, the connecting rod 26 is lowered. At this time, the one-way clutch 6 rotates. Therefore, the rotational force of the pushing plate 22 is directly transmitted to the tube shaft 5 via the friction body 21, and the take-up reel 4 rotates by a predetermined angle in accordance with the downward stroke of the connecting rod 26. By continuously performing this movement, the cover tape 3 is wound onto the take-up reel 4.

[0014] When winding of the cover tape 3 is completed,
The cover tape 3 wound around the take-up core 9 in multiple layers can be easily removed from the take-up reel 3. That is, first, the reel flange 4b is turned clockwise to release the engagement with the guide pins 10 and 11 and removed from the tube shaft 5. Next, by applying force to the cover tape 3 wound around the winding core 9 from the outside to the inside so as to sandwich both the core pieces 9a and 9b between the thumb and forefinger, for example, The two core pieces 9a and 9b constituting the winding core are each pushed inward, and the pressure contact between the tape fixing pin and the core piece that fixed the end of the cover tape 3 is released. At the same time, a gap is created between both core pieces 9a, 9b and the wound cover tape 3. In this way, the wound cover tape 3 can be easily transferred to the winding core 9.
can be removed from.

In this embodiment, the winding core 9 is composed of two core pieces 9a and 9b, but it is not limited to these two pieces, and can be changed depending on the size of the winding core, etc. It may be formed of any number of core pieces. Further, among the plurality of core pieces constituting the winding core, only one is rotatably supported,
All other core pieces may be fixed.

[0016]

[Effects of the Invention] As explained above, the cover tape winding device of the present invention allows the cover tape to be fixed easily and reliably, prevents the occurrence of poor winding of the cover tape, and shortens the setup work. This has the following effects.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing the internal structure of a take-up reel of a cover tape take-up device according to the present invention, with one of the reel flanges removed.

FIG. 2 is an explanatory diagram showing a state in which a cover tape is sandwiched between the take-up reels in FIG. 1;

FIG. 3 is a front view of a cover tape winding device according to the present invention.

FIG. 4 is a rear view of the cover tape winding device of FIG. 3;

FIG. 5 is a partial cross-sectional view taken along line AA in FIG. 3;

6 is a sectional view taken along line BB in FIG. 3. FIG.

[Explanation of symbols]

1 Support 2 Support shaft 4 Take-up reel 5 Tube shaft 6 One-way clutch 9 Winding core 10, 11 Guide pin 14 Guide ring 15, 16 Tape fixing pin 19, 20 ball 22 Push plate

Claims (1)

[Claims] Claim 1: A take-up core is formed of a plurality of arc-shaped core pieces at the center of a cover tape take-up reel rotatably held on a support, and at least one of the core pieces is rotatably supported. A cover tape winding device for an electronic component supply device, characterized in that a winding start end of the cover tape is held between a pin implanted in the winding core and the rotatable core piece.